linux-toradex.git/net/bridge/br_sysfs_br.c, branch v3.0.44

bridge: range check STP parameters

2011-04-05T00:22:29+00:00

Apply restrictions on STP parameters based 802.1D 1998 standard.
   * Fixes missing locking in set path cost ioctl
   * Uses common code for both ioctl and sysfs

This is based on an earlier patch Sasikanth V but with overhaul.

Note:
1. It does NOT enforce the restriction on the relationship max_age and
   forward delay or hello time because in existing implementation these are
   set as independant operations.

2. If STP is disabled, there is no restriction on forward delay

3. No restriction on holding time because users use Linux code to act
   as hub or be sticky.

4. Although standard allow 0-255, Linux only allows 0-63 for port priority
   because more bits are reserved for port number.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

bridge: add per bridge device controls for invoking iptables

2010-07-02T07:32:57+00:00

Support more fine grained control of bridge netfilter iptables invocation
by adding seperate brnf_call_*tables parameters for each device using the
sysfs interface. Packets are passed to layer 3 netfilter when either the
global parameter or the per bridge parameter is enabled.

Acked-by: Stephen Hemminger 
Acked-by: David S. Miller 
Signed-off-by: Patrick McHardy

sysfs: add struct file* to bin_attr callbacks

2010-05-21T16:37:31+00:00

This allows bin_attr->read,write,mmap callbacks to check file specific data
(such as inode owner) as part of any privilege validation.

Signed-off-by: Chris Wright 
Signed-off-by: Greg Kroah-Hartman

bridge: Add multicast count/interval sysfs entries

2010-02-28T08:49:47+00:00

This patch allows the user to the IGMP parameters related to the
snooping function of the bridge.  This includes various time
values and retransmission limits.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

bridge: Add hash elasticity/max sysfs entries

2010-02-28T08:49:46+00:00

This patch allows the user to control the hash elasticity/max
parameters.  The elasticity setting does not take effect until
the next new multicast group is added.  At which point it is
checked and if after rehashing it still can't be satisfied then
snooping will be disabled.

The max setting on the other hand takes effect immediately.  It
must be a power of two and cannot be set to a value less than the
current number of multicast group entries.  This is the only way
to shrink the multicast hash.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

bridge: Add multicast_snooping sysfs toggle

2010-02-28T08:49:46+00:00

This patch allows the user to disable IGMP snooping completely
through a sysfs toggle.  It also allows the user to reenable
snooping when it has been automatically disabled due to hash
collisions.  If the collisions have not been resolved however
the system will refuse to reenable snooping.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

bridge: Add multicast_router sysfs entries

2010-02-28T08:49:45+00:00

This patch allows the user to forcibly enable/disable ports as
having multicast routers attached.  A port with a multicast router
will receive all multicast traffic.

The value 0 disables it completely.  The default is 1 which lets
the system automatically detect the presence of routers (currently
this is limited to picking up queries), and 2 means that the port
will always receive all multicast traffic.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

net: Move && and || to end of previous line

2009-11-30T00:55:45+00:00

Not including net/atm/

Compiled tested x86 allyesconfig only
Added a > 80 column line or two, which I ignored.
Existing checkpatch plaints willfully, cheerfully ignored.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

net: Fix bridgeing sysfs handling of rtnl_lock

2009-05-19T05:15:59+00:00

Holding rtnl_lock when we are unregistering the sysfs files can
deadlock if we unconditionally take rtnl_lock in a sysfs file.  So fix
it with the now familiar patter of: rtnl_trylock and syscall_restart()

Signed-off-by: Eric W. Biederman 
Signed-off-by: David S. Miller

netdevice: safe convert to netdev_priv() #part-4

2008-11-13T07:39:10+00:00

We have some reasons to kill netdev->priv:
1. netdev->priv is equal to netdev_priv().
2. netdev_priv() wraps the calculation of netdev->priv's offset, obviously
   netdev_priv() is more flexible than netdev->priv.
But we cann't kill netdev->priv, because so many drivers reference to it
directly.

This patch is a safe convert for netdev->priv to netdev_priv(netdev).
Since all of the netdev->priv is only for read.
But it is too big to be sent in one mail.
I split it to 4 parts and make every part smaller than 100,000 bytes,
which is max size allowed by vger.

Signed-off-by: Wang Chen 
Signed-off-by: David S. Miller